/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.alipay.sofa.registry.server.session.store;

import java.util.Map;

/**
 * Session Data store manager,according base data function
 *
 * Session Data struct
 *
 * - DataInfo ID
 *  |
 *   - Publisher List
 *  |
 *   - Subscriber List
 *
 * @author shangyu.wh
 * @version $Id: DataManager.java, v 0.1 2017-11-30 17:57 shangyu.wh Exp $
 */
public interface DataManager<DATA, ID, DATAINFOID> {

    /**
     * new publisher and subscriber data add
     *
     * @param data
     */
    void add(DATA data);

    /**
     * remove single data by register id
     * @param registerId
     * @param dataInfoId
     * @return
     */
    boolean deleteById(ID registerId, DATAINFOID dataInfoId);

    /**
     * query data by client node connectId
     *
     * @param connectId
     * @return
     */
    Map<String, DATA> queryByConnectId(String connectId);

    /**
     * remove data by client node connectId
     *
     * @param connectId
     */
    boolean deleteByConnectId(String connectId);

    /**
     * count pub and sub number
     * @return
     */
    long count();
}